Trojan.JobCrypter

What is Trojan.JobCrypter infection?

In this article you will certainly find about the meaning of Trojan.JobCrypter and its adverse influence on your computer. Such ransomware are a kind of malware that is specified by on-line scams to require paying the ransom money by a sufferer.

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Most of the situations, Trojan.JobCrypter virus will instruct its victims to launch funds move for the function of neutralizing the modifications that the Trojan infection has introduced to the target’s gadget.

Trojan.JobCrypter Summary

These alterations can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • A process attempted to delay the analysis task.;
  • Starts servers listening on 127.0.0.1:0;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Exhibits possible ransomware file modification behavior;
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Ciphering the documents found on the sufferer’s disk drive — so the sufferer can no more make use of the information;
  • Preventing normal accessibility to the victim’s workstation;

Trojan.JobCrypter

One of the most normal networks through which Trojan.JobCrypter are infused are:

  • By means of phishing emails;
  • As an effect of customer ending up on a resource that hosts a malicious software program;

As quickly as the Trojan is effectively injected, it will either cipher the data on the victim’s PC or prevent the device from operating in a correct fashion – while likewise putting a ransom note that states the demand for the victims to impact the payment for the purpose of decrypting the records or recovering the data system back to the first problem. In most instances, the ransom money note will show up when the customer restarts the COMPUTER after the system has currently been harmed.

Trojan.JobCrypter circulation channels.

In various corners of the world, Trojan.JobCrypter expands by leaps and bounds. Nonetheless, the ransom money notes and also techniques of obtaining the ransom money amount might vary relying on certain regional (regional) settings. The ransom notes as well as methods of extorting the ransom money quantity may differ depending on particular local (local) settings.

Ransomware injection

For example:

    Faulty informs about unlicensed software application.

    In specific areas, the Trojans frequently wrongfully report having found some unlicensed applications enabled on the victim’s device. The sharp then demands the customer to pay the ransom money.

    Faulty declarations about unlawful material.

    In countries where software program piracy is less prominent, this method is not as effective for the cyber scams. Conversely, the Trojan.JobCrypter popup alert might wrongly declare to be originating from a police establishment and also will certainly report having located kid porn or other prohibited information on the gadget.

    Trojan.JobCrypter popup alert might wrongly claim to be obtaining from a legislation enforcement establishment and also will report having located kid porn or various other illegal information on the tool. The alert will similarly contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: F1EFF65A
md5: 15a8ddc87a96b2ee74f1649ddce2df1c
name: 15A8DDC87A96B2EE74F1649DDCE2DF1C.mlw
sha1: eb386ee0964805435916147b024cd04dfbe6b8bc
sha256: 51fa90092b1a51fe433236bed7d5dadc5fdd731e11ffe3d7471309fca74a5df4
sha512: 7fb74b531c43154c0a602f60e30d1121726890f0d8746f053bd9079cc300a964a3ddeb9dc43c9682ed85afa7f4827a41e8d4174718092dcc69bef3fb2f871f13
ssdeep: 12288:ZTCFOW2wZ162eI31jBQHt1mcQDDzpS2O0GxNkg:dIOW2y62eI31jOHt2DDzpS2O0GxNkg
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2009-2018 Oracle Corporation
InternalName: VirtualBox
FileVersion: 5.2.16.123759
CompanyName: Oracle Corporation
ProductName: Oracle VM VirtualBox
ProductVersion: 5.2.16.123759
FileDescription: VirtualBox Manager
OriginalFilename: VirtualBox.exe
Translation: 0x0409 0x04e4

Trojan.JobCrypter also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 700000121 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader26.62681
Cynet Malicious (score: 100)
ALYac Trojan.Ransom.JobCrypter
Cylance Unsafe
Zillya Trojan.Agent.Win32.965812
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:MSIL/Filecoder.ca37c718
K7GW Trojan ( 700000121 )
Cybereason malicious.87a96b
ESET-NOD32 a variant of MSIL/Filecoder.JobCrypter.C
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan-Ransom.Win32.Agent.gen
BitDefender Gen:Variant.Ransom.JobCrypter.7
NANO-Antivirus Trojan.Win32.Filecoder.fgqlgp
MicroWorld-eScan Gen:Variant.Ransom.JobCrypter.7
Tencent Win32.Trojan.Agent.Dyqq
Ad-Aware Gen:Variant.Ransom.JobCrypter.7
Sophos Mal/Generic-R + Mal/Ramsil-F
Comodo Malware@#3ppgzf72x6nzb
BitDefenderTheta Gen:NN.ZemsilF.34628.Lq0@a8fO6Thi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_GANDCRAB.TIAOBHN
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.15a8ddc87a96b2ee
Emsisoft Gen:Variant.Ransom.JobCrypter.7 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Agent.bltf
Webroot W32.Ransom.Gen
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Occamy.B
Arcabit Trojan.Ransom.JobCrypter.7
AegisLab Trojan.Win32.Agent.4!c
GData Gen:Variant.Ransom.JobCrypter.7
AhnLab-V3 Trojan/Win32.Gandcrab.C2667464
McAfee Artemis!15A8DDC87A96
MAX malware (ai score=94)
Malwarebytes Trojan.JobCrypter
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_GANDCRAB.TIAOBHN
Yandex Trojan.Filecoder!hFAa/lEAs5E
Ikarus Trojan-Ransom.Jobcrypter
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Generic.AP.CFC0B00!tr
AVG Win32:Trojan-gen
Qihoo-360 Win32/Ransom.Generic.HgIASOMA

How to remove Trojan.JobCrypter ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

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Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Trojan.JobCrypter files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Trojan.JobCrypter you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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